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Clean Water Act discharge permit · NPDES TX0003573

E S JOSLIN POWER STATION, Point Comfort, TX: NPDES TX0003573 discharge permit, effluent exceedances, inspections, penalties

E S JOSLIN POWER STATION, held by CALHOUN PORT AUTHORITY, holds NPDES permit TX0003573, which discharges to Cox Bay. EPA’s file records it issued February 11, 2020 and expiring February 11, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedE S JOSLIN POWER STATION
Permittee as filedCALHOUN PORT AUTHORITY
NPDES IDTX0003573
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedFebruary 11, 2020
Expiration dateFebruary 11, 2025
AddressPoint Comfort, TX 77978
Receiving waterCOX BAY
Receiving water impaired303(D) Listed
SubwatershedCox Creek (HUC 121004010100)
Other EPA IDs (FRS)RCRA handler TXD070479688; ICIS-AIR source TX0000004805700005

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
pH6580
Flow, in conduit or thru treatment plant6580
Chlorine, total residual4400
Solids, total suspended4320
Temperature, water deg. fahrenheit2180
Oil & Grease2180
Copper, total [as Cu]2180
Iron, total [as Fe]2180
BOD, 5-day, 20 deg. C2140
Coliform, fecal general080
Enterococci130
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)220
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia220
NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)220
NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia220
NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)220
NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia220
Whole effluent toxicity - retest #1300
Whole effluent toxicity - retest #2300
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)200
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia200
LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)200
LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia200
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)200
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia200
LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia)100
LC50 Pass/Fail Static 24Hr Acute Menidia menidia100

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES TX0003573.

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES TX0003573.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID TX0003573 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

This public-records page covers the NPDES TX0003573 Clean Water Act discharge permit for E S JOSLIN POWER STATION in Point Comfort, TX, held by CALHOUN PORT AUTHORITY, which discharges to COX BAY and is listed as administratively continued. The page lists a permit status of Minor Discharger class, 0 pollutants under a numeric limit, and 0 pollutants with an effluent exceedance.